25 citations · 67 across the 6 of their papers we have counts for
6 papers
Entanglement recycling in two-step port-based teleportation
Piotr Kopszak, Dmitry Grinko, Adam Burchardt +3
A protocol involving the repetitive (twofold, to be precise) application of PBT protocol to the same resource is studied. The quantities characterizing the resulting protocol, so-c…
Square-root measurements and degradation of the resource state in port-based teleportation scheme
Michał Studziński, Marek Mozrzymas, Piotr Kopszak
Port-based teleportation (PBT) is a protocol of quantum teleportation in which a receiver does not have to apply correction to the transmitted state. In this protocol two spatially…
Optimal Multi-port-based Teleportation Schemes
Marek Mozrzymas, Michał Studziński, Piotr Kopszak
In this paper, we introduce optimal versions of a multi-port based teleportation scheme allowing to send a large amount of quantum information. We fully characterise probabilistic…
Efficient multi port-based teleportation schemes
Michał Studziński, Marek Mozrzymas, Piotr Kopszak +1
In this manuscript we analyse generalised port-based teleportation (PBT) schemes, allowing for transmitting more than one unknown quantum state (or a composite quantum state) in on…
Multiport based teleportation -- transmission of a large amount of quantum information
Piotr Kopszak, Marek Mozrzymas, Michał Studziński +1
We analyse the problem of transmitting a number of unknown quantum states or one composite system in one go. We derive a lower bound on the performance of such process, measured in…
Positive Maps From Irreducibly Covariant Operators
Piotr Kopszak, Marek Mozrzymas, Michał Studziński
In this paper, we discuss positive maps induced by (irreducibly) covariant linear operators for finite groups. The application of group theory methods allows deriving some new resu…